Device for achieving shield tail desilting in shield construction

By designing the linkage of components such as the slag receiving trough, sludge suction pipe, and negative pressure pump, the problem of cleaning difficulties caused by slag accumulation during shield tunneling construction was solved, achieving efficient discharge and dilution of slag, reducing manual labor intensity, and improving construction efficiency.

CN223908217UActive Publication Date: 2026-02-13CHINA RAILWAY NO 8 ENG GRP CO LTD
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Patent Information

Application Number
CN202520706522.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-13
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

During shield tunneling, the accumulation of slag at the tail of the shield results in a large amount of manual cleaning work, which is time-consuming and labor-intensive.

Method used

A device was designed that includes a slag receiving trough, a sludge suction pipe, a negative pressure pump, a water inlet pipe, an air inlet pipe, and a solenoid valve. The negative pressure pump and the sludge suction pipe work together to achieve directional discharge of slag. The water inlet pipe and the air inlet pipe control the entry of liquid water and gas into the slag receiving trough to dilute and stir the slag. Baffles and rubber balls prevent slag from entering the air inlet pipe.

Benefits of technology

It enables convenient cleaning of construction waste, reduces manual labor intensity, avoids the accumulation of construction waste affecting the construction progress, and makes construction waste cleaning more efficient.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223908217U_ABST
    Figure CN223908217U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of shield tunneling, in particular to a shield tail desilting device for shield tunneling, which comprises a primary belt frame, a slag receiving groove and an electromagnetic valve, a surface passage of the slag receiving groove is connected with a sludge suction pipe, one end of the sludge suction pipe far away from the slag receiving groove is connected with a negative pressure pump, the surface of the negative pressure pump is provided with a sludge discharge pipe, and the sludge discharge pipe is connected with the electromagnetic valve. A water inlet pipe and an air inlet pipe are arranged on the surface of the slag receiving tank, the electromagnetic valve is fixedly connected to the surfaces of the water inlet pipe and the air inlet pipe, and an air guide pipe is fixedly connected to the end, away from the electromagnetic valve, of the air inlet pipe. According to the utility model, through the connection of the slag receiving groove and the mud suction pipe, under the action of the negative pressure pump and the mud discharge pipe, the slag receiving groove is used for collecting the slag at the first-stage belt frame, and under the action of the negative pressure pump and the mud suction pipe, the slag is correspondingly discharged, so that the situation that a large amount of slag is accumulated and the shield construction progress is influenced is avoided, and the slag is more convenient to clean; and the labor intensity of workers is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a shield technology field, concretely is a device that solves the dredging of shield tail of shield construction. BACKGROUND

[0002] In the shield construction process, with the tunneling of shield machine, some shield projects cause spouting due to stratum, resulting in a large amount of muck accumulation in the shield tail of the shield machine, and the artificial cleaning workload is large, time-consuming and laborious. UTILITY MODEL CONTENTS

[0003] The utility model discloses a device that solves the dredging of shield tail of shield construction to solve the problem of muck accumulation in the shield tail of the shield machine, which is artificial cleaning, and the workload is large, time-consuming and laborious.

[0004] To achieve the above object, the utility model provides the following technical scheme, a device that solves the dredging of shield tail of shield construction, including primary belt frame, the surface access of interface muck groove is connected with the suction pipe, the end that the suction pipe is away from interface muck groove is connected with negative pressure pump, the surface of negative pressure pump is provided with the mud pipe, the surface of interface muck groove is provided with water inlet pipe and air inlet pipe, the surface of water inlet pipe and air inlet pipe is fixedly connected with electromagnetic valve, the end that air inlet pipe is away from electromagnetic valve is fixedly connected with the gas guide pipe of air inlet pipe, the surface access of gas guide pipe is connected with the outlet pipe of air inlet pipe, the inner side of outlet pipe is fixedly connected with the fixed plate of air inlet pipe, the surface of fixed plate is fixedly connected with the tension spring of air inlet pipe, the surface swing connection of outlet pipe is connected with the baffle of air inlet pipe, the surface of baffle is provided with the gas guide groove of air inlet pipe, the surface of outlet pipe is fixedly connected with the rubber ball of air inlet pipe, and the rubber ball and gas guide groove resist contact.

[0005] Preferably, the interface muck groove is fixed on the surface of the primary belt frame, the negative pressure pump is connected through the suction pipe and the interface muck groove, and the mud pipe and the suction pipe are connected through the negative pressure pump.

[0006] Preferably, the end of the water inlet pipe away from the electromagnetic valve is fixedly connected with a spray head, and the spray head penetrates the surface of the interface muck groove, and the water inlet pipe is above the air inlet pipe through the interface muck groove.

[0007] Preferably, the gas guide pipe is distributed in three groups on the surface of the air inlet pipe, and the cross sections of the water inlet pipe and the air inlet pipe are both in the shape of "T".

[0008] Preferably, the outlet pipes are uniformly distributed on the surface of the gas guide pipe, and the end of the tension spring away from the fixed plate is fixedly connected with the baffle.

[0009] Preferably, the baffle is elastically rotatably connected with the outlet pipe through the tension spring, and the diameter of the gas guide groove is larger than the diameter of the rubber ball.

[0010] Compared with the prior art, the utility model has the advantages of

[0011] 1, through the connection of the slag groove and the suction pipe, under the action of the negative pressure pump and the mud discharge pipe, the slag soil at the first level belt frame is collected through the slag groove, under the action of the negative pressure pump and the suction pipe, corresponding discharge operation is obtained, a large amount of slag soil is avoided to be accumulated, shield construction progress is affected, and the slag soil is more convenient to clean, and the labor intensity is reduced.

[0012] 2, through the connection of the water inlet pipe and the electromagnetic valve, the water inlet of the slag groove is controlled, under the action of the water inlet pipe, the dilution of the slag soil in the slag groove is controlled, the discharge operation of the negative pressure pump and the suction pipe is facilitated, under the action of the air inlet pipe, through the connection of the air guide pipe and the air outlet pipe, the gas is introduced, the slag soil in the slag groove is stirred, the slag soil and the water are fully mixed, the liquid or semi-solid state is formed, the slag discharge operation is facilitated, under the action of the baffle, when the air guide pipe is not used, the slag soil in the slag groove is effectively prevented from entering the air guide pipe through the air outlet pipe, and the normal use of the air guide pipe is affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure use state schematic view of the utility model;

[0014] Figure 2 It is the structure three-dimensional schematic view of the utility model;

[0015] Figure 3 It is the structure bottom view three-dimensional schematic view of the utility model;

[0016] Figure 4 It is the structure three-dimensional schematic view of the slag groove of the utility model;

[0017] Figure 5 It is the structure partial three-dimensional sectional view of the slag groove of the utility model;

[0018] Figure 6 It is the structure three-dimensional schematic view of the utility model Figure 5 It is the structure partial three-dimensional sectional view of the air guide pipe of the utility model;

[0019] Figure 7 It is the structure three-dimensional schematic view of the utility model Figure 6 It is the enlarged structure schematic view of the place A of the utility model.

[0020] In the drawing: 1, first level belt frame;2, slag groove;3, suction pipe;4, negative pressure pump;5, mud discharge pipe;6, water inlet pipe;7, air inlet pipe;71, air guide pipe;72, air outlet pipe;73, fixed plate;74, tension spring;75, rubber ball;76, baffle;77, air guide groove;8, electromagnetic valve. DETAILED DESCRIPTION

[0021] Please refer toFigures 1-7 The utility model provides an embodiment provided by the utility model discloses a kind of:

[0022] A kind of device for solving dredging of shield tail of shield construction, including primary belt frame 1, slag receiving groove 2 and electromagnetic valve 8, the surface passage of slag receiving groove 2 is connected with suction pipe 3, one end of suction pipe 3 away from slag receiving groove 2 is connected with negative pressure pump 4, the surface of negative pressure pump 4 is provided with mud pipe 5, the surface of slag receiving groove 2 is provided with water inlet pipe 6 and air inlet pipe 7, electromagnetic valve 8 is fixedly connected on the surface of water inlet pipe 6 and air inlet pipe 7, one end of air inlet pipe 7 away from electromagnetic valve 8 is fixedly connected with air guide pipe 71, the surface passage of air guide pipe 71 is connected with air outlet pipe 72, the inboard of air outlet pipe 72 is fixedly connected with fixed plate 73, the surface of fixed plate 73 is fixedly connected with tension spring 74, the surface of air outlet pipe 72 is movably connected with baffle 76, the surface of baffle 76 is provided with air guide groove 77, the surface of air outlet pipe 72 is fixedly connected with rubber ball 75, rubber ball 75 and air guide groove 77 are in contact, by the cooperation of slag receiving groove 2 and primary belt frame 1, it is convenient for slag receiving groove 2 to concentrate the collection operation of slag soil at primary belt frame 1, under the connection of suction pipe 3 and negative pressure pump 4, negative pressure pump 4 is installed at the appropriate position on equipment bridge, through the connection of negative pressure pump 4 and mud pipe 5, reach the discharge effect of slag soil in slag receiving groove 2.

[0023] Further, slag receiving groove 2 is fixed on the surface of primary belt frame 1, negative pressure pump 4 is connected by the passage of suction pipe 3 and slag receiving groove 2, mud pipe 5 and suction pipe 3 are connected by the passage of negative pressure pump 4, through the connection of negative pressure pump 4 and suction pipe 3, under the action of negative pressure pump 4, by the connection of suction pipe 3 and slag receiving groove 2, reach the directional discharge effect of collected slag soil in slag receiving groove 2.

[0024] Further, one end of water inlet pipe 6 away from electromagnetic valve 8 is fixedly connected with spray head, and the spray head penetrates the surface of slag receiving groove 2, water inlet pipe 6 is above air inlet pipe 7 by the action of slag receiving groove 2, through the connection of water inlet pipe 6 and spray head, under the action of electromagnetic valve 8, reach the control of water amount entering slag receiving groove 2 through water inlet pipe 6, so that it dilutes slag soil in slag receiving groove 2.

[0025] Further, air guide pipe 71 is distributed on the surface of air inlet pipe 7 in three groups, the section of water inlet pipe 6 and air inlet pipe 7 is all in the shape of "T", through the connection of air inlet pipe 7 and air guide pipe 71, under the action of electromagnetic valve 8, control the air amount of air inlet pipe 7 and air guide pipe 71 to slag receiving groove 2, again cooperate the action of water liquid, reach the sufficient dilution effect of slag soil in slag receiving groove 2.

[0026] Further, the air outlet pipes 72 are uniformly distributed on the surface of the air guide pipe 71, the one end of the tension spring 74 away from the fixed plate 73 is fixedly connected with the baffle 76, through the connection of the air guide pipe 71 and the air outlet pipe 72, under the connection of the air outlet pipe 72 and the baffle 76, the control of the opening and closing of the air outlet pipe 72 channel is facilitated, and the slag soil in the slag receiving groove 2 flowing into the air guide pipe 71 through the air outlet pipe 72 when there is no gas passing through is avoided, so that the normal use of the air guide pipe 71 is affected.

[0027] Further, the baffle 76 is elastically rotatably connected with the air outlet pipe 72 through the tension spring 74, the diameter size of the air guide groove 77 is greater than that of the rubber ball 75, through the connection of the fixed plate 73 and the tension spring 74, under the connection of the tension spring 74 and the baffle 76, the elastic rotation effect of the baffle 76 on the air outlet pipe 72 is realized, under the action of the air guide groove 77, the gas can be guided, under the abutting contact of the rubber ball 75 and the air guide groove 77, the connection and sealing performance of the baffle 76 and the air outlet pipe 72 when abutting is improved.

[0028] Working principle: when the slag soil at the first-stage belt frame 1 is treated, the slag soil is collected through the action of the slag receiving groove 2, the height detection and other related detection instruments can be arranged at the slag receiving groove 2, when the slag soil at the slag receiving groove 2 is detected to be accumulated to the set value, the water inlet pipe 6 and the air inlet pipe 7 are controlled to pass through by the electromagnetic valve 8, so that the water and the gas enter the slag receiving groove 2, the dilution and stirring of the slag soil in the slag receiving groove 2 are completed, at the same time, after 5 minutes, the negative pressure pump 4 is started, under the action of the suction pipe 3 and the discharge pipe 5, the diluted slag soil in the slag receiving groove 2 is discharged, under the connection of the air outlet pipe 72 and the baffle 76, the gas is sprayed out through the air outlet pipe 72, at this time, the connection angle of the baffle 76 on the air outlet pipe 72 is changed, the stirring of the slag soil in the slag receiving groove 2 is completed, when there is no gas acting on the air outlet pipe 72, the baffle 76 is abutted with the air outlet pipe 72 through the action of the tension spring 74, so that the slag soil flowing into the air guide pipe 71 through the air outlet pipe 72 is avoided, the blockage of the channel of the air guide pipe 71 is avoided, and the normal use of the air guide pipe 71 is affected.

Claims

1. A device for solving the problem of tail sludge dredging in shield construction, comprising a primary belt frame, a slag receiving groove and a solenoid valve, characterized in that: The surface channel of the slag receiving groove is connected with a suction pipe, one end of the suction pipe away from the slag receiving groove is connected with a negative pressure pump, the surface of the negative pressure pump is provided with a mud discharge pipe, the surface of the slag receiving groove is provided with a water inlet pipe and an air inlet pipe, the electromagnetic valve is fixedly connected on the surface of the water inlet pipe and the air inlet pipe, one end of the air inlet pipe away from the electromagnetic valve is fixedly connected with a gas guide pipe, the surface channel of the gas guide pipe is connected with an air outlet pipe, the inner side of the air outlet pipe is fixedly connected with a fixed plate, the surface of the fixed plate is fixedly connected with a tension spring, the surface of the air outlet pipe is movably connected with a baffle, the surface of the baffle is provided with a gas guide groove, the surface of the air outlet pipe is fixedly connected with a rubber ball, and the rubber ball and the gas guide groove are in contact.

2. The device for solving the problem of dredging the tail of a shield tunneling machine according to claim 1, characterized in that: The slag receiving groove is fixed on the surface of the first level belt frame, the negative pressure pump is connected with the suction pipe and the slag receiving groove through the channel, and the mud discharge pipe and the suction pipe are connected through the negative pressure pump.

3. The device for solving the problem of tail sludge removal in shield construction according to claim 1, characterized in that: One end of the water inlet pipe away from the electromagnetic valve is fixedly connected with a spray head, the spray head penetrates through the surface of the slag receiving groove, and the water inlet pipe is above the air inlet pipe through the slag receiving groove.

4. The device for solving the problem of tail sludge removal in shield construction according to claim 1, characterized in that: The air inlet pipe is provided with three groups of gas guide pipes, and the cross sections of the water inlet pipe and the air inlet pipe are both "T" shaped.

5. The device for solving the problem of tail sludge removal in shield construction according to claim 1, characterized in that: The air outlet pipes are uniformly distributed on the surface of the gas guide pipe, and one end of the tension spring away from the fixed plate is fixedly connected with the baffle.

6. The device for solving the problem of tail sludge removal in shield construction according to claim 1, characterized in that: The baffle is elastically rotatably connected with the tension spring and the air outlet pipe, and the diameter of the gas guide groove is larger than that of the rubber ball.